Download Model 1 Q 1:cartilaginous joint Q2: deoxribose sugar and phosphate

Model 1
Q 1:cartilaginous joint
Q2: deoxribose sugar and phosphate group (sugar phosphate)
Q3: interstitial cells
Q4; bone marrow
Q5: Structural immunity
Q6: Coconut milk
Q7: Transverse link
Q8: 8
Q9: Achilles tendons
Q10: Cretinism
Q11: Natural killer cells
Q12: increase re absorption of sodium
Q13:* To get entire genome of cell by broken up DNA at it ,then cleaved with restriction endonuclease,
these DNA piece are spliced into plasmids or phages and cloned, then various selective techniques are
used to isolate the desired DNA sequences.
*it starts with cells in which the gene of interest is active as cells of pancreas produce insulin, they
isolate this RNA and use it as a template is called reverse transcriptase once this enzyme has produced a
single strand of DNA polymerase the resulting double stranded DNA can then be cloned, the second is
better.
Q14: When the second male nucleus (N) fuse with 2 nuclei of embryo sac(2N) forming the endosperm
nucleus that becomes triploid(3N)
Q15: Its important is the endosperm nucleus divides to form endosperm tissue supply embryo in early
stage by food.
Q16: Maturation of ovule
Q17: Draw
Q18: The grow rapidly form embryo sac where the nucleus divide to give 8 nuclei, 4 migrate to each
pole, one of them go to center to make 2 polar nuclei, one of the three near micropyle grow to make
egg cell, the other 2 side cells called synargids cells, the other 3 at the pole called antipodal cells.
Q19: cell B and C degenerate
Q20: Antheridium
Q21: Sternum
Q22: cervix
Q23: Thymine
Q24:
Site
Germinal center cortex in lymph node
Function
-Identify any microbes
-adhere to them
-produce antibodies for this microbes to destroy it
Q25:
Site
Outer end of scapula
Q26:
Function
To make articulation with humerus to form shoulder joint
Site
Between muscle fiber and nerve cell
Function
Transmit nerve impulses to make contraction and relaxation of
muscle
Q27:
Site
Secreted at cortex of adrenal gland
Function
-Increase re absorption of sodium
-increase excretion of potassium from kidney tubules
Or metabolism of mineral and balance of the body.
Q28:
Site
At position of attachment of Ilium
and ichium bones
Q29:
Function
Make position of attachment with femur head make hip joint
Site
Ovaries
Function
It helps appearance of female secondary character.
Regulates menstrual cycle
Q30: because the 2 bones are covered with delicate transparent cartilaginous substance and it contain a
synovial floud to move easily.
Q31: because viruses with RNA genomes which use it to convert their own RNA genomes into DNA that
can be joined to hosts DNA genomes.
Q32: Because he has a decreasing in metabolic rate.
Q33: if there are a direct penetration of pathogen which leading to inhibition of penetration process
through them.
Q34: because each species has ite time: lion and tiger is annually, cat and dogs is twice in a year, human
28 days.
Q35: Because polymerase can’t work from 3/ end toward the 5/ end of the strand which is synthesizing,
it made in short pieces in the direction 5/ to 3/ and then ligase joined together these short pieces.
Q36:
3/---------A U G A A U C U C G A A U A A U G A---------5/
Q37: 6
Q38:
points
Time
Graafian follicle
Ovum grows and mature inside it in
10 days
Corpus Latium
After liberation of ovum, in14 days ,
graafian follicle transferred to it.
Or it is secretion
It secrets estrogen which stimulates
the growth of the endometrial
It secretes progesterone
Q39:
Helper T cells
Activate other types of T cells and stimulate it.
Stimulate B-cells to produce antibodies
Q40:
Cytotoxic T-cells
Attacking carcinogenic cells, transplanted organs
and body cells infected with the virus
Adenohypophysis
Anterior and middle lobe of pituitary gland
Neurohypophysis
Posterior lobe and a part of brain called
infundibulum
It secrets: antidiuretic hormone and oxytocin
Or it secret: Growth hormone and pituitary
trophins
Q41: 8
Q42: 4
Q43: 56
Q44:1- archegonium 2-gametophyte
3-antheridium
4-rhizoid
Q45: antheridium the male- archegonium the female
Q46: polypedium (Adiantum)
Q47: it give new sporophyte that grow over the gametophyte till it forms root, stem and leaves.
Q48: the pea plant can’t grow vertically to reach light, it may wilt and die .
Q49: that increase in calcium level in blood which release from bone, bone become fragile and liable
for bending and fracture.
Q50: method to separate sperms carry (y) to produce animals with more meat, sperms with (X) for
producing milk.
Q51: simple goiter happened to this person.
Q52: by surgically to open it again to let sperms reach ovum.
Q53:by protecting ear with substance act as wax because the disappear of first line of defense in ear
prevent pathogens from entering the body is dangerous.
Q54: anti –inflammation and analgesic drugs, using a medical splint or surgical intervention.
Q55: planarians will regenerate each part grow making new individual.
Q56: The stimulates maturity of lymphoid stem cells to T- cells decrease and the immunity of body
decrease.
Q57: formation of sperms stop and the man become sterile.
Q58: draw of antibody
Q59: draw
Lateral
conjugation of
spirogyra
Q60:there is one filament in the place and not to be extinct. to produce new filament(N).